#include "main.h"

void MySystemClock_Config(void);

int main(void)
{
	HAL_Init();
	MySystemClock_Config();
	return 0;
}

void MySystemClock_Config(void)
{
	RCC_OscInitTypeDef  RCC_OscInitStruct;
	RCC_ClkInitTypeDef  RCC_ClkInitStruct;
	
	RCC_OscInitStruct.OscillatorType 	= RCC_OSCILLATORTYPE_HSE;
	RCC_OscInitStruct.HSEState			= RCC_HSE_ON;
	RCC_OscInitStruct.HSEPredivValue    = RCC_HSE_PREDIV_DIV1;
	RCC_OscInitStruct.HSIState			= RCC_HSI_OFF;
	RCC_OscInitStruct.PLL.PLLState		= RCC_PLL_ON;
	RCC_OscInitStruct.PLL.PLLSource		= RCC_PLLSOURCE_HSE;
	RCC_OscInitStruct.PLL.PLLMUL		= RCC_PLL_MUL9;
	
	HAL_RCC_OscConfig(&RCC_OscInitStruct);
	
	RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
								| RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
	RCC_ClkInitStruct.SYSCLKSource 		= RCC_SYSCLKSOURCE_PLLCLK;
	RCC_ClkInitStruct.AHBCLKDivider 	= RCC_SYSCLK_DIV1;
	RCC_ClkInitStruct.APB1CLKDivider  	= RCC_HCLK_DIV2;
	RCC_ClkInitStruct.APB2CLKDivider  	= RCC_HCLK_DIV1;
	
	HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
}
